While racing, pressing the Options button will pause the game and in the list of options you will see an option called Pilot Assist. This basically aids you in turning corners and avoiding collisions. Just pick any race and make sure it is on when you start and just win the race. You can complete this in racebox as well as putting the difficulty on Novice to make it easier. Set it up to a shorter track like Anulapha Pass if you want to earn this quickly.